199588420

素因数分解:

$2^2\times 5^1\times {\mathrm{919}}^1\times {\mathrm{10859}}^1$

素因数の和:11787

約数の個数: 24

約数和(自身を含む): 419630400

約数和(自身を除く): 220041980

約数列:

[1, 2, 4, 5, 10, 20, 919, 1838, 3676, 4595, 9190, 10859, 18380, 21718, 43436, 54295, 108590, 217180, 9979421, 19958842, 39917684, 49897105, 99794210, 199588420]

約数ペア:

[(1, 199588420), (2, 99794210), (4, 49897105), (5, 39917684), (10, 19958842), (20, 9979421), (919, 217180), (1838, 108590), (3676, 54295), (4595, 43436), (9190, 21718), (10859, 18380)]